“It’s textbook,” Lars argued, pointing his gloved finger at the seam. “Root pass, hot pass, fills. The X-ray will clear it.”

John closed his eyes. He didn’t save the world. He just made sure that when the pressure came—and it always came—the steel held. That was enough.

“The code is here,” he said. “But the truth is here. Most inspectors just read the numbers. The good ones read the man who made the numbers.”

John knelt, his knees popping in protest. He ran a gloved thumb over the toe of the weld. To the untrained eye, it was a thing of beauty—stacked dimes, perfect overlap. But John felt the slight, almost imperceptible ridge. He pulled out his digital caliper. 3.2mm of reinforcement. Spec called for 3.0mm max.

“A good weld that fails,” John said. “Because you can’t see the lie until people are dead.”